A) P - will have 1 valence electron. Q - will have 2 valence electrons.
B) P - will have greater atomic size as nuclear charge will be less. Q - will have smaller atomic size as nuclear pull will increase with increase in no. of electrons.
C) P- is more metallic. Q- is less metallic.
D) P - likely to lose electron. Q - less likely to lose electron.
E) P - P2O Q - QO
F) P - PCl Q - QCL2